(d) If at any time during the Term, Lessor reasonably determines in its reasonable
 discretion that the current issuing or confirming bank for the Letter of Credit is no
 longer an acceptable issuing or confirming bank (whether by virtue of a material adverse
 change in its financial condition, a decrease in any credit rating of its long-term
 unsecured debt obligations, or for any other reason) Lessee shall promptly procure that
 the Letter of Credit is replaced by a Letter of Credit issued by another bank reasonably
 acceptable to Lessor in its reasonable discretion and (if reasonably requested by Lessor
 in its reasonable discretion) that such replacement Letter of Credit is confirmed by
 another bank reasonably acceptable to Lessor in its reasonable discretion.

 (e) If Lessor makes a drawing under the Letter of Credit, Lessee shall, following a demand
 in writing by Lessor, procure that the maximum amount available for drawing under the
 Letter of Credit is promptly restored to the level at which it stood immediately prior
 to such drawing.

 (f) If Lessee elects to provide Lessor with a Letter of Credit in lieu of the cash Deposit
 pursuant to the provisions of this Clause 5.1, then promptly upon receipt by Lessor of
 such Letter of Credit, Lessor shall return such cash Deposit to Lessee. If at any time
 thereafter a Letter of Credit shall not be in force and effect, then Lessee shall
 promptly provide Lessor with a cash Deposit.

 (g) So long as no Default or Event of Default then exists, Lessor shall refund to Lessee all
 Deposits (if any) then held by Lessor or, as the case may be, return the Letter of
 Credit upon return and final acceptance of the Aircraft by Lessor on the Expiry Date or
 promptly after receipt of the Agreed Value after an Event of Loss.